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- Опубликовано: 25 авг 2024
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I love the fact you blow out the motor, I seen heads come back from the machine shops filled with chips; I also like how you lube the cam shafts.
maaaan I got a honda cylinder head from a shop and they didn't clean anything. Terrible
These places are cheap as hell. Makes you not want to do business. It doesn't take much to add a huge value to the service like this
I’d still drop it in the parts cleaner box and give it a douche unless I knew for sure it was properly cleaned.
@@TheShangralaaaa17 who doesn't love a lubed shaft?
@@MostGenericUser not as much friction
I'm a Subaru dealer tech and the guy we take our heads to never cleans out the coolant passages so nice to see you taking that extra step
I'm a Toyota tech, my wife wants Subaru with AWD. So damn persistent. Any thoughts? Thanks
@@prius74 the outbacks are really nice. The only downsides are the CVT feels like crap. Other than that it's a beast in the winter and lots of room
@@prius74 your wife has an awesome taste. Can I marry her?
Interesting comment.
@@prius74ignore her
And think if they install these perfectly the customer will only have to do head gaskets again in 6-9 months 🤣🤣🤣
What makes you think that?
@@e-racer4673 known problem with Subarus.
The NA Subaru engines had an open deck block that wasn't very good. I have heard that since the turbo Subarus have a closed deck block, this doesn't happen as often.
@@skylinefever the EJ257 isn't closed deck, but head gaskets have never been a problem I'm aware of. The cylinder ringlands do have a nasty habit of cracking or entirely separating and going for a ride around the inside of the crankcase. Been there, done that. It's always cylinder 4 for some reason, too.
@@ParadigmUnkn0wn From what I have read, the US version has a really lame exhaust manifold design that doesn't balance flow well. As a result, one cylinder will be hotter than others. Japan gets a full twin scroll, and that works better. However, they only get a 2.0L engine because there is a tax based on engine displacement.
Fortunately, engine importers can get you an OEM Subaru twinscroll turbo and manifold setup for cheap. If you want to go further, you could buy some high performance twin scroll manifold and turbo.
I literally did this with mine in my garage with a piece of glass, different sandpaper grits, wd40, and patience. It has been almost 50k and I have no issues. I couldn't afford a shop to do it and it was my only car. I'm pretty sure I just got lucky though.
I used a random orbital sander then glass! 20k and going strong. MLS head gaskets fix all the subie head issues.
Actually, that's how some incredibly precise work is lapped.
Still holding up? I'm basically in the same boat with a blown head and was going to resurface myself
Glass? What for?
@@DarkArcharon b/c it's relatively flat. Surface plate would be the way to go but float glass is pretty cheap, pretty flat, and lightweight so you could also cleanup the block with it still in the car. (On many cars - don't know about these Subarus)
A few years back i used the services of our local engineering shop(brag about 50 years experience) to resurface top,test for cracks,valve grinding.
Afterwards top look like block of bad cut cheese,valve stem seals not straight,springs wrong way around.Most people dont care.Glad to see there are people who do
My Subarus head gasket just went, made it till 245k miles thought so not too shabby.
which engine do you have?
I could just sit and watch y’all’s videos all day. I’m a fairly new machinist myself, and enjoy soaking up as much knowledge about it as I can!
If yall ever do any land rover v8 heads id love to see some videos! Blocks too. Since the cylinder liner had a reputation for slipping out of the bore unless a top hat liner is used or the old liner is Peened
This 👆
Top hat liner all day for that fancy shmancy buik engine
I no longer have my Rover V8, but i would still like to see that, too! Another vote for a longer video of such!
Easiest way to solve that is with an LS swap! I thought I had a blown head gasket, replaced it, and it overheated 5 minutes after running every time. I pressurized the cooling system to 20psi and found a pool of coolant in cylinder 5 after taking out the spark plug. Slipped sleeve. I haven't heard great things about the rebuilt engines so the LS swap seemed like the right path.
@@nepicnesslove the look of those but afraid of the engines lol always said if I got one I'd buy a roller/blown motor example and ls swap that puppy
When you know your job and doing it great and with love you get this, I believe that all of your customers are very happy and you guys have a lot of work
Machinist: See you later, you are done.
Subaru Head: I"ll be back!
When I worked for Subaru I saw Subaru "Master" techs R+R an EJ head, clean the block and heads with a straight razor and then slap some factory MLS head gaskets on - No machine work and the heads were 0.003" warped (who knows how much the block could've been warped) AND he didn't use the specific torque procedures for the head bolts (the torque, loosen then re-torque part of the procedure). Yet I didn't see these particular cars come back (at least not within the 1.5 years I worked there). I did see one EJ get slapped back together, run rough and then the Subaru "Master" tech told the Service Advisor to sell a Fuel Injection service and when that didn't work to sell fuel injectors. The customer picks up the car and is back just a few days later. The service department manager told another tech to pull the engine and once the other tech had pulled the exhaust during this process he could totally see that one of the exhaust seats had dropped with another seat about to drop. I've worked for other make's dealerships throughout the years and have seen some sketchy shit but seeing this type of stuff from technicians not giving AF really bummed me out.
Dealerships are the worst, when I worked for Toyota, Lexus, and Daihatsu it was all the same.
I wouldn't trust them to drain my oil let alone anything else.
I'm so glad that wherever I worked, every head would be sent to the local automotive machinist every time.
It's like the ratio of competent techs that cared to turn and burn flat rate idiots has flopped. Especially places like that Subaru dealership that I worked at. The place was so huge, multiple buildings, 45-50 Subaru techs at any given time. How could there be any accountability. It's too bad
That there sounds like a warranty job. I've worked at dealerships as a tech. The warranty time sucks on all repairs. It's hard to beat time. So as a tech you have to choose between making a living and your own work ethics. I blame the company for the poor quality or skipping steps. If they paid for the repair properly then they would get the proper job. But warranty time is bullshit. I work at Ford In the 90's a Ford Taurus paid 3 hours to do the evaporator core. Warranty paid 3 hours. Now I did so many of these I could go to my box and pull every tool I needed to do the job. I mean I did alot of them. My best time to pull the dash start to finish was 5.5 hours. Impossible to make time. So as you well know the tech takes the hit on it. The way your master tech fix it was probably the only way to make the pay for him close to fair.
I wrote that wrong. Warranty time was 3 hours and book time was 6 hours on the ones with 3.0 push rod motor. It was almost impossible to make regular book time. For sure you couldn't make warranty time.
Subaru: Proud sponsor of Machine shops and Mechanics all around the world 😊
After resurface I use Felpro permanent torque head gaskets never had an issue.
I used to rebuild these too and yeah they kept us busy. Job security is what it is ✌🏾
its cos you dont brace the block.
@@deadprivacy - Brace it all you want - still junk …
@@sking2173 ive seen success with them but its thousands in jig setups to brace the buggers to match the final head torques wjen facing and boring but you pay your money you take your choice...
Setup right and with numbered hours?
The engine of choice for many amatuer aircraft builders too.
And they make a lovely noise...
Before they go bang...
Theres a channel covers in detail how to rebuild em so the turnaround isnt quite as fast but the barrels inevitably warp again...
I’m glad machine shops like this exist. We live in such a throw away society, it’s nice to see some things actually get fixed. Subarus can have comically bad reliability sometimes, but I really do think the users get a lot of utility out of them and appreciate them more than anything else on the market. So many Subarus in the scrapyards, so many on the road with 250k miles. I don’t know the story behind each vehicle, but I do appreciate a good repair that lasts a very long time.
I've done that job with wet n dry sand paper on a piece of glass . Took 2 hours per head . But that's still quicker than 2 trips into town n back . Worked beautifully. Sealed perfectly for years to this day .
Love them boxes!!🥰🥰 I need them in my life.
Good to see people with a sense of duty.
I’m surprised that the head isn’t disassembled (cams/valves/springs/seals) removed prior to machining.
They probably asked for just that per their budget. I've asked and received similar work to save money for what I could do myself like install new valve seals and or springs.
I know right? Doing a head job on a budget is rarely a good idea.
@@BenVanAmburg I've done it many times and never had a comeback. The key is cleanliness and having old head teachers.
It takes less time and you still get an even surface. Unless they're doing work to the valves no reason to take them off plus you have to adjust them as well.
Next time!!!!
*_Good quality workmen right here._*
Watching these videos is so therapeutic
Very satisfying thank you.
I love watching these. Wish i could afford a rebuild engine.
Sleeper pontiac vibe 🤣
Jim's IS The BEST!!! For All Your Machine Shop Needs!!!
I took my head to a machine shop, he proudly told me he dipped it in the bath to clean it, shortly after I found all the valve guide seals in the oil pan..
Good to see you take pride in your work.
My mate has an rb30 850hp build by one of the top notches here in Sydney one of the valves broke so he took it in.
They took of the head fixed it charged him good but never changed the oil or filter or cleaned the bottom end. As he drove it home bang. The mechanic said it’s not his fault and charged for a rebuild. Should of seen how much metal bits were in the oil and filter! It destroyed a custom solid forged crank smh
Sounds like a lawsuit to me.
But then I'm from California. 😉😉😉
This speak volumes about EJ engines and subaru in general
Only the ej253 and the ej25d.
@@chandlerbraaten847 ej251 as well
Wish I had a machine shop in town I could trust with Subaru heads. Been resurfacing and “going through” my own heads for years.
You do good work. Thanks for taking pride in your work.
Fresh automobile engines always have a certain kind of functional beauty that is hard to explain.
Beautiful work!
I'm thinking of opening a subie specific machining shop cause that would be some serious job security
Honestly, if you live somewhat near a big city (Like within an hour drive), and you did a jdm-specific machine shop, so like Subie/Honda/Nissan and maybe Toyota, and gave decent prices, you would make BANK.
@@seekingsoflo As well as selling performance parts.
Subies traditionally sell well in the PNW, there are a number of specialty shops that make a living on Subie HG jobs, they are efficient at it and done right.
As someone who just lost all 4 rod bearings at the same time... youre not wrong
Incredible ✊🏽 Love the work you guys put in. 👏🏽
Why do I like watching these videos! I mean i have a little mechanican abilities but I have to watch everyone from start to finish... and I'll even rewarch old ones!
Damn this shop is beyond Awsome. Wish they be in California so can visit.
How much does this kind of work cost? Beyond that, what skills/experience so you need to get into doing this kind of work for people?
Machinist, 3 year apprenticeship. You don’t need to go to school just gotta be good with math and your hands.
Machining is super fun
@@Kc6spd how much would a head milling like this cost at your job/shop? They shaved .002 according to video
@@fjsgte678 not sure I don’t quote and we don’t do this stuff. We do large stuff like ships and what not. Legally not allowed to say.
@@Kc6spd you didnt sign a nda bud lol
i remember rebuilding 2-4 pairs of these a day back when i worked at a machine shop
any time a head went into the hot tank we always fully stripped them down and addressed every bit of it
It’s the pride and professionalism of the machinist, or lack of, that results in the head being blown out so nicely and the cam lobes lubed or not. I’d be very happy knowing you’d worked on my engines
If it was my car I'd say do the guides and valves. What little extra money involved would be a piece of mind well spent.
I would of had them magna Flux to check for cracks and had valve stem seals replaced just to cure that start up smoke job.
People. Don't be so upset. This is a masterpiece of art. He did perfect job. Customer asked for resurfacing because head gasket leak. Not because of losing compression. You don't change 16 valves and use plastigauge for bearing clearance to machine the head for 500$. This gentleman exist for you to get your ugly subi head gasket done with just around 1500-2000$. Cheers to machine shops. Without these shops you will be paying 4-5k$ for a head, wait 6 months for parts to arrive
Wish my machine shops cleaned out those shavings this well near me. I've had so many vvt issues after head jobs I have to clean them myself after they get back.
Nice work Guy's , keep up the good work 👍👍👍
Third set today. There was a video of a Subaru mechanic who had a very tall stack of head gaskets on top of a tool box.
Out there doing gods work. Great job man!
I really want to see after videos of the engines working after the resurfacing.
Could we get more resurfacing videos on a daily without the time consuming edits
Machine shops and mechanics are probably the only people that actually like Subarus.
My friend's machine shop is a neverending revolving door of these heads
Lol the last 5 seconds in this video tell you everything you need to know
What? His over exaggeration? Stuff like that on the internet is why things get so blown out of proportion. It's easy to make jokes but apparently it's hard to actually educate.
Subaru Makes Great Service Engines. Keeps Techs Busy !
Recently payed way too much for a 02' Legacy that had the heads rebuilt, now after a full year of driving, its burning coolant again. So, with that out of the way, I am pleased to see a machine shop doing quality work. Getting hard to find these days!
If you have a turbo Subaru, you need to have the combustion volume verified and use an appropriate gasket or have the ECU tuned for the change.
My Chevy 350 just got a new head gasket, but I can’t afford any of this so for now it’s just gonna keep burning coolant 😂
When he said sturdy my mind went a whole different direction.
Those CAMS looked real good BBUURRNNTT !!!!
That’s awesome. Very thorough.
Was that a steel chisel scraping the head!? Absolutely fantastic!
Yk a workshop is reliable af when they can make your old engine case shine like it just came out of cnc
Nothing like cylinder pressure in your cooling system and coolant in you exhaust. "Its about love"
I hope my local shops do them this good
you hope your locqal shop doesn't bother to strip it all down so a thorough cleaning process can actually work ??
Got a mechanic to do the heads on my car a few years back, looked just like this except neither the machinist nor the mechanic blew the chips out. Obviously grenaded the motor and had to drop a fresh one in 🤷🏻♂️
Highly unlikely that was what caused the issue
Highly unlikely yes, impossible no 🤷🏻♂️
The shop that did our mopar engine returned us a drag motor that sounded like it was going to explode or turn the tranny to butter every time you mashed it...the torque converter finally stripped out with an awful sound but the engine never scattered...
I’d love to sweep floors at this shop for a summer. Doing machine work is so cool.
As long as Subaru is in business you’ll always have business, the famous head gasket blower!
Originally a Borgward design from a long time and guess what the Borgward problem was!
Not a problem anymore. Only happened in the 2.5L N/A motors.
I have a engine that should have blown the HG but it still hasn't after 230,000 miles.
Only north american Non turbo 2.5s had poor head gaskets... Misconceptions really do damage...
I'm glad you guys popped up on my account.
Those heads will be back at the shop in 5 months 🤠
Awesome job, had napa do mine and they made the very minor error of leaving all the metal shavings in the head…
Huge big up to you since the France 🇫🇷 👍 👌 💪 😎
In that scenario I would be getting the valves ground also. If it were my car. May as well get the best seal you can.
check seals and guides and remove the swarf properly
They can’t see their temp gauge through all the vape smoke 😮💨
That looks like a fun job!
We use dry ice blasting and it is wonderful
50k tune up on a Subaru. I mean to send them a thank you letter, they've been keeping me in business for over 15 years! 😅
I should not have seen this! I live in East TN, I have had problems with local machine shop working on Japanese car parts. Especially Subaru. I may be reaching out some time soon inquiring about getting some work done.
Beautifully made.
The middle of the head is the typical failure point on these so it makes sense that first pass didnt get it
Hell yeah, Canadian subaru shop!
I’m glad someone knows how to put the proper surface on a Subaru head. I sand mine on glass mounted to a true flat surface with sandpaper taped to the glass. It works great! No offense to you dude but most machine shops can’t get that surface quality. That’s why I do them myself…
That's a nice clean professional job. Especially the crate you pack it in to in South Africa the machine shop just wraps it up in plastic wrap and that's it
I imagine many machine shops here in the US wrap them in plastic. It all depends on the particular shop.
All good. But I always prefer to strip the head including cam cradle
A really good seal for a really short time
I had a sti for 7 years it never give me no issues idk why ppl complain just check the oil and coolant once a month and that’s it
Tip to anyone doing dumb subie shit, if its boost, stock or not, get a solid deck done, they basically weld blocks into the coolant jacket to keep everything from moving (oversimplified but thats that) and multilayer steel gaskets
My ej209 took over 260k/km without opening engine once...these failures are mostly user related or just 2,5l.
Anyone thinking of getting a wrx or sti, don't. People don't exaggerate when they say they spend 10k+ on repairs, I have a 08 STI, had 10k of work done to it and a new engine since the old one had rod knock(3 days after purchase) and on top of that I put 4k in myself and it still has a bunch of minor issues
This is one reason I aspire to own an Evo X.
@@skylinefever if you can get one do it, they're only going to get more expensive, the STI is still sitting in the garage I daily a stage 2 435i now which has been very reliable so far
If the mechanic decides to lap the valves himself, do you prefer to get the head without cam or valves? If you lap the valves for the customer, do you machine the heads before reassembly?
Now the Dead Flat head doesn't fit the wonky block it's been on🤔
well, I'd say "just EJ25 problems," but my EZ30 just popped a head gasket at 191,700 miles... almost twice as much as either of my old EJ25s... and less than any of my EJ22s, which have all had over 250k on them without any signs of head gasket issues.
How many of you have experienced a headgasket job that then turned Into a piston ring job? (After putting it all back together that is)
As always this is the correct way to do it.
How do you know when your engine needs this?
I want my OPC astra H to get the engine completely revamped, but unfortunately that lies beyond what I can afford.
subie tech here, nice to see. I tend to ship mine out no cams though. Also that .002" cut is the cut depth limit on these in the service manual.
That’s amazing since the typical Subie head was out-of-plane by .006 or more from the factory …
agreed! .002" seems quite lite on the depth.
Not only does this make engine more reliable and better seal but give slightly more compression
Subarus always pull away from the face on the exhause side. Also, check the block for warp in the same direction
Classic Subaru head gasket failure* nice work!
Subis should come with two engines: one in the car and one in the shop
It's still gonna blow up
Can you throw the specs out there, the bore, valce size, stem diameter, bore spacing? Make it part if the discription! 👍😎 ✌️
For the people commenting about the metal shavings. It’s not up to the machinist to clean this out for you. That’s not his job or responsibility. If they go the extra mile to do this for you that’s wonderful but the person responsible for cleaning and inspecting all parts is the engine assembler. You could have the machine shop blow it out but if at the very final step the engine assembler skips this. You could still have foreign objects inside the engine no one knows about.
AGREED...!!!!!
Quick question, not to haggle, just curious..
How do you keep swarf from getting into the oil passages in the head?
You don't hence compressed air and a solvent.